APPARATUS AND METHOD FOR OUTPUTTING CONTENT, AND DISPLAY APPARATUS

• US 20160343348A1
• Filed: 04/05/2016
• Published: 11/24/2016
• Est. Priority Date: 05/21/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: OH, Sung-bo
• Granted Patent: US 10,679,585 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G06T 2207/20208 High dynamic range [HDR] image processing
• CPC Class Codes: G06T 5/00 Image enhancement or restoration
• CPC Class Codes: G06T 5/92 based on global image properties
• CPC Class Codes: G09G 2320/0271 Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
• CPC Class Codes: G09G 2320/0276 for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
• CPC Class Codes: G09G 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• CPC Class Codes: G09G 2340/00 Aspects of display data processing
• CPC Class Codes: G09G 2340/0428 Gradation resolution change
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• CPC Class Codes: G09G 2370/042 for monitor identification
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: G09G 5/10 Intensity circuits
• CPC Class Codes: H04N 19/46 Embedding additional information in the video signal during the compression process H04N19/517, H04N19/68, H04N19/70 take precedence

Abstract

An apparatus for outputting a content to a display, including a communicator configured to perform a data communication with the display; an input interface configured to receive an input content and metadata associated with the input content; and a processor configured to acquire image quality information applied to the content based on the metadata, to convert the input content into a converted content outputtable on the display by using content conversion information related to the acquired image quality information, and to control the communicator to output the converted content to the display.

Claims

1. An apparatus for outputting a content to a display, the apparatus comprising:

a communicator configured to perform a data communication with the display;

an input interface configured to receive an input content and metadata associated with the input content; and

a processor configured to acquire image quality information applied to the input content based on the metadata, to convert the input content into a converted content outputtable on the display by using content conversion information related to the acquired image quality information, and to control the communicator to output the converted content to the display.

2. The apparatus of claim 1, wherein the input content comprises a Standard Dynamic Range (SDR) content, the image quality information applied to the input content comprises gamma information, and the converted content outputtable on the display comprises a High Dynamic Range (HDR) content.

3. The apparatus of claim 2, wherein the content conversion information comprises a lookup table for converting SDR pixel values of image frames of the SDR content into HDR pixel values having a characteristic of the HDR content,

wherein the display is further configured to gamma-correct the converted content by using gamma information predetermined to be applied to the HDR content.

4. The apparatus of claim 3, wherein the HDR pixel values correspond to the SDR pixel values of the image frames of the SDR content, and

wherein the processor is further configured to convert the SDR pixel values of the image frames of the SDR content into the HDR pixel values based on the lookup table.

5. The apparatus of claim 3, wherein the HDR pixel values correspond to a subset of the SDR pixel values of the image frames of the SDR content,

wherein the processor is further configured to determine other HDR pixel values corresponding to other SDR pixel values from the HDR pixel values corresponding to the subset of the SDR pixel values based on the lookup table.

6. The apparatus of claim 2, further comprising:

a storage configured to store a plurality of pieces of content conversion information corresponding to a plurality of pieces of gamma information applicable to the SDR content,

wherein the processor is further configured to acquire the content conversion information corresponding to the gamma information from the storage.

7. The apparatus of claim 2, wherein the processor is further configured to determine whether at least one from among Video Usability Information (VUI) or Supplemental Enhancement Information (SEI) of the metadata includes the gamma information applied to the SDR content.

8. The apparatus of claim 2, wherein the processor is further configured to control the communicator to transmit to the display content information comprising information for gamma-correcting the converted content in the display.

9. The apparatus of claim 2, wherein in response to Extended Display Identification Data (EDID) being received from the display through the communicator, the processor is further configured to determine whether the display is capable of playing the HDR content based on the received EDID and to convert the SDR content into the HDR content in response to determining that the display is capable of playing the HDR content.

10. The apparatus of claim 9, further comprising:

a storage configured to store a plurality of pieces of content conversion information corresponding to a plurality of pieces of gamma information applicable to the SDR content,

wherein the processor is further configured to acquire the content conversion information based on the acquired gamma information and display gamma information included in the EDID received from the display.

11. A method of outputting a content from a content outputting apparatus to a display, the method comprising:

receiving an input content and metadata associated with the input content;

acquiring image quality information applied to the input content based on the metadata;

determining content conversion information related to the acquired image quality information;

converting the input content into a converted content outputtable on the display using the content conversion information; and

outputting the converted content to the display.

12. The method of claim 11, wherein the input content includes an SDR content, the image quality information applied to the input content includes gamma information, and the converted content outputtable on the display includes an HDR content.

13. The method of claim 12, wherein the content conversion information includes a lookup table for converting SDR pixel values of image frames of the SDR content into HDR pixel values having a characteristic of the HDR content,

wherein the display gamma-corrects the converted content by using gamma information predetermined to be applied to the HDR content.

14. The method of claim 13, wherein the HDR pixel values correspond to the SDR pixel values of the image frames of the SDR content,

wherein the converting further comprises converting the SDR pixel values of the image frames of the SDR content into the HDR pixel values based on the lookup table.

15. The method of claim 13, wherein the HDR pixel values correspond to a subset of the SDR pixel values of the image frames of the SDR content,

wherein the converting further comprises determining other HDR pixel values corresponding to other SDR pixel values from the HDR pixel values corresponding to the subset of the SDR pixel values based on the lookup table.

16. The method of claim 12, wherein the acquiring further comprises acquiring the content conversion information corresponding to the gamma information from a plurality of pieces of content conversion information corresponding to a plurality of pieces of gamma information applicable to a pre-stored SDR content.

17. The method of claim 12, wherein the acquiring further comprises determining whether at least one from among Video Usability Information (VUI) or Supplemental Enhancement Information (SEI) of the metadata includes the gamma information applied to the SDR content.

18. The method of claim 12, wherein the outputting further comprises transmitting content information including information for gamma-correcting the converted content in the display to the display.

19. The method of claim 12, further comprising:

in response to Extended Display Identification Data (EDID) being received from the display, determining whether the display is capable of playing the HDR content, based on the received EDID,

wherein in response to a determination that the display is capable of playing the HDR content, the SDR content is converted into the HDR content.

20. A content providing apparatus, comprising:

a communicator configured to communicate with a display;

an input interface configured to receive a Standard Dynamic Range (SDR) content; and

a processor configured to determine gamma information associated with the SDR content, to determine content conversion information related to the gamma information, to convert the SDR content into High Dynamic Range (HDR) content using the content conversion information, and to output the HDR content to the display.